Technical Manual
IT3000P KE
Industrial Weighing Terminal
With Profibus DP Interface
Februar 2005
Rev. 1
© SysTec GmbH • Ludwig-Erhard-Str. 6 • D-50129 Bergheim-Glessen
Tel.: +49 (0) 2238 / 9663-0 • Fax: +49 (0) 2238 / 9663-10
II
Technical Manual IT3000P KE
Rev. 1
Technical Manual IT3000P KE
Rev. 1
Technical Manual IT3000P KE
Date:
25.02.2005
File:
IT3000P_Kestermann_THE.doc
Program Version:
as of 1.0
III
IV
Technical Manual IT3000P KE
Rev. 1
Published By:
SysTec GmbH, Ludwig-Erhard-Str.6, D-50129 Bergheim-Glessen, Germany
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted
in any form or by any means, mechanical, photocopying, recording, or otherwise, without the prior written
permission of SysTec GmbH.
Copyright © 2003 by SysTec GmbH
Terms and product names mentioned in this publication are trademarks, registered trademarks or
service marks of their respective owners. Use of a term should not be regarded as affecting the validity
of any trademark, registered trademark or service mark.
Please Note:
While every precaution has been taken in the preparation of this manual, SysTec GmbH assumes no
responsibility for errors or omissions. Neither is any liability assumed for damages resulting from the use of
the information contained herein.
The publisher is grateful for any information and/or advice that may contribute to correct errors or omissions
in following editions.
Technical Manual IT3000P KE
V
Rev. 1
Contents
1 Introduction .................................................................................................................1
1.1 General ..............................................................................................................1
1.2 Construction.......................................................................................................1
1.3 Declaration Of Conformity....................................................................................2
1.4 Safety Advice .....................................................................................................3
2 Quick Start ..................................................................................................................4
3 Installation...................................................................................................................4
3.1 Warnings ...........................................................................................................4
3.2 Mains Connection ...............................................................................................4
3.3 Setup Of The Instrument......................................................................................5
3.4 Opening Of The Housing ......................................................................................5
3.5 Connection Of Cables ..........................................................................................5
3.6 Connection Of Scale............................................................................................6
3.6.1 Analog Understructures And Loadcells .......................................................6
3.6.2 Securing Scale Parameters........................................................................7
3.7 Serial Interfaces ..................................................................................................8
3.7.1 Connection Of Service Interface ................................................................8
3.7.2 Connection Of Profibus DP .......................................................................8
3.8 Connection Of Parallel I/Os.................................................................................10
4 Operation / Settings....................................................................................................11
4.1 Display And Keyboard........................................................................................11
4.2 Operator Prompting ...........................................................................................12
5 Service Mode .............................................................................................................13
6 Calibration .................................................................................................................14
6.1 Select Group ....................................................................................................14
6.2 Example ...........................................................................................................16
7 Set Slave Address ......................................................................................................18
8 Weighing Functions ....................................................................................................19
9 Connection To Host System ........................................................................................21
9.1 Representation Of Input And Output Words..........................................................21
9.2 Input And Output Words ....................................................................................22
9.2.1 Input Words Of PLC ...............................................................................22
9.2.2 Output Words Of PLC ............................................................................24
9.3 Exchange Of Control Signals...............................................................................25
9.3.1 Read Weight Values ....................................Fehler! Textmarke nicht definiert.
9.3.2 Set Scale To Zero ..................................................................................25
9.3.3 Autotare Scale ...........................................Fehler! Textmarke nicht definiert.
9.3.4 Clear Tare (Set To Gross) ............................Fehler! Textmarke nicht definiert.
9.3.5 Tare Scale With Specified Value ...................Fehler! Textmarke nicht definiert.
9.3.6 Filling A Single Component ..........................Fehler! Textmarke nicht definiert.
9.3.7 Discharge Scale..........................................Fehler! Textmarke nicht definiert.
9.3.8 Read Data Of Scale Calibration.....................Fehler! Textmarke nicht definiert.
9.3.9 Read Data Of Scale Calibration (Option) ........Fehler! Textmarke nicht definiert.
9.3.10 Download Data Of Scale Calibration............Fehler! Textmarke nicht definiert.
9.3.11 Download Data Of Scale Calibration (Option)Fehler! Textmarke nicht definiert.
9.3.12 Calibrate Zero...........................................Fehler! Textmarke nicht definiert.
9.3.13 Calibrate Load ..........................................Fehler! Textmarke nicht definiert.
9.3.14 Calibrate With Partial Load .........................Fehler! Textmarke nicht definiert.
9.4 Data Word Monitor............................................................................................26
VI
Technical Manual IT3000P KE
10 Backup ................................................................................................................... 27
11 Restore ................................................................................................................... 27
12 Hardware Test ......................................................................................................... 28
13 Options For Calibration ............................................................................................. 29
13.1 General Parameters ......................................................................................... 29
13.1.1 Multiple-Range Scale ........................................................................... 29
13.1.2 Multi-Interval Scale.............................................................................. 30
13.1.3 Adaptation To Scale Environment.......................................................... 31
13.1.4 Setting Of Geo Value ........................................................................... 31
13.1.5 Weights & Measures Approved Applications ........................................... 31
13.2 Entering Calibration Mode ................................................................................ 31
13.3 Scale Parameters ............................................................................................ 32
13.4 Calibration ..................................................................................................... 35
13.5 Linearization................................................................................................... 37
13.6 Zero Adjust .................................................................................................... 38
13.7 Adaptation ..................................................................................................... 39
13.8 High Resolution .............................................................................................. 40
13.9 Reset Parameters............................................................................................ 41
13.10 Factory Calibration ........................................................................................ 42
13.11 Calibration Without Test Weights.................................................................... 42
13.12 Geo Values .................................................................................................. 43
14 Description Of Components ....................................................................................... 45
14.1 Main Module CPU3000P.................................................................................. 45
14.2 Display .......................................................................................................... 45
14.3 Power Supply 110 - 240 VAC .......................................................................... 46
14.4 Power Supply 12 - 30 VDC.............................................................................. 46
14.5 Cable For Service Interface .............................................................................. 47
15 Transport, Maintenance And Cleaning......................................................................... 48
15.1 Transport....................................................................................................... 48
15.2 Maintenance .................................................................................................. 48
15.3 Cleaning ........................................................................................................ 48
16 Trouble Shooting...................................................................................................... 49
16.1 Error Messages............................................................................................... 50
17 Technical Data ......................................................................................................... 52
18 Dimensions.............................................................................................................. 53
19 Service Password..................................................................................................... 55
Rev. 1
Technical Manual IT3000P KE
1
Rev. 1
1
Introduction
This manual contains information and Technical Data for installation and operation of the IT3000P
industrial weighing terminal.
Warnings are shown with the corresponding warning triangle.
1.1
General
The IT3000P is a general purpose weighing terminal for remote control over Profibus DP. One analog
understructure with a total of up to 16 strain gauge loadcells with a resistance of 350 Ω each can be
connected. Depending on the specific application, plug-on modules for 1 serial interface (service
interface) and 2 parallel I/Os can be added. Power supply through the built-in power supply unit is
either for 110 - 240 VAC or 12 - 30 VDC. Cables of all external components are connected at screw
terminals.
Weight and additional information is indicated on a back-lit 20-character LCD, height of characters
14mm. Operation and data entry is made via a sealed membrane keyboard with tactile feedback.
The terminal supports the operating modes 'ONLINE P' (full remote control over Profibus DP) and
'Simple Weighing' (weight display with manual tare and autotare function).
1.2
Construction
IT3000P is incorporated in a stainless steel housing, protected to IP65, for wall-mount or desk-top
installation. As option, a panel-mount version is available. All cable connections are made at the rear of
the housing through tight cable glands.
See section 'Dimensions' for details.
2
1.3
Technical Manual IT3000P KE
Rev. 1
Declaration Of Conformity
SysTec Systemtechnik und Industrieautomation GmbH
Ludwig-Erhard-Str. 6
D-50129 Bergheim-Glessen
Konformitätserklärung
Declaration of conformity
Déclaration de conformité
Die nichtselbsttätige Waage
The non-automatic weighing instrument
L’instrument de pesage à fonctionnement non automatique
III
Hersteller:
Manufacturer:
Fabricant:
Typ/Modell:
Type/Model:
Type/modèle:
Nr. der EG-Bauartzulassung (gegebenenfalls):
No of the EC type-approval certificate (where applicable):
N° du certificat d’approbation CE de type (le cas écheant):
SysTec GmbH
IT3000
D01 - 09 - 017
entspricht dem in der Bescheinigung über die Bauartzulassung beschriebenen Baumuster sowie den Anforderungen der EG-Richtlinie 90/384/EWG in der jeweils geltenden Fassung und den Anforderungen folgender
Richtlinien:
corresponds to the production model described in the EC type-approval certificate and to the requirements of the
Council Directive 90/384/EEC as amended and to the requirements of the following EC directives:
correspond au modèle décrit dans le certificat d’approbation CE de type, aux exigences de la directive
90/384/CEE modifiée et aux exigences des directives CE suivantes:
89/336/EWG
89/336/EEC
89/336/CEE
73/23/EWG
73/23/EEC
73/23/CEE
entsprechend den folgenden Normen:
in conformity with the following standards:
conforme aux normes suivantes:
EN 45501
EN 50082-1
EN 50081-1
EN 60950
Diese Erklärung gilt nur in Verbindung mit einer Konformitätsbescheinigung einer benannten Stelle.
This declaration is only valid with a certificate of conformity by a notified body.
Cette déclaration est valid seulement avec une attestation de conformité d’un organisme notifié.
Unterschrift
Signature
Signature
Datum
Date
Date
Dipl.-Ing. Rainer Junglas
Geschäftsführer
General Manager
Directeur
14.10.2001
October 14, 2001
14ième Octobre, 2001
Technical Manual IT3000P KE
1.4
Rev. 1
3
Safety Advice
Read this manual carefully before you operate this instrument!
Keep this manual for future reference!
Only permit qualified personnel to operate this instrument!
Disconnect all power to this instrument before cleaning and servicing!
This module and its associated equipment must be installed, adjusted and maintained by
qualified personnel only!
It must be installed, serviced, and operated in strict compliance with all locally applicable
safety regulations and the rules for the prevention of accidents!
If the line cord with connector is used as the means to separate the instrument from the
mains, the wall outlet must be installed close to the instrument and must be easily
accessible! If a permanently connected mains cable is used, an easily accessible separator
must be included in the supply circuit!
The IT3000P power supply unit provides SELV voltages in accordance with EN 60950.
Make sure that any peripheral device connected to the weighing terminal containing its own
power supply also uses SELV voltages!
When this unit is included as a component part of a system, the resulting system design
must be reviewed by qualified personnel who are familiar with the construction and
operation of all individual components in the system and the potential hazards involved.
Failure to observe this precaution could result in bodily injury!
All switch gear connected to the unit and/or installed close to it, such as relays and
contactors, must be fitted with appropriate components (RC-modules, diodes) to suppress
interference.
In order to avoid static discharge, all metallic parts of a system must be thoroughly
grounded. Movable parts, such as portable scales on plastic wheels, must be grounded with
earth clamps or earth leads of appropriate diameter.
If this device is used in an automatic or manual filling cycle, all users must provide a hard
wired emergency stop circuit outside the device circuitry. Failure to observe this precaution
could result in bodily injury!
4
Technical Manual IT3000P KE
2
Rev. 1
Quick Start
In spite of its many applications, setup and installation of IT3000P is quite simple.
Just 3 steps are required:
1.
Installation / connection of scale
2.
Calibration of scale
3.
Setting of Profibus DP slave address.
This manual is structured accordingly, with additional chapters explaining the data exchange over the
Profibus and a description of technical details for service purposes.
For the configuration of the Profibus master, a GSD file on diskette is supplied with the unit.
To connect the terminal to the mains, a line cord with grounding type plug is provided, alternatively a
DC operated version is available that is supplied without line cord.
3
Installation
3.1
Warnings
Disconnect all power to the instrument and/or unplug line cord prior to opening the housing!
Failure to observe this precaution could result in bodily injury!
Transport and storage of electronic components such as boards, EPROMs, etc. must only
be made in suitable anti-static ESD bags or cases.
Shielding measures for the connection of cables must absolutely be adhered to. Insufficient
shielding may cause interference and could result in malfunction of the instrument.
Cut cable ends as short as possible and make sure that they cannot touch any parts (mains
cable, power supply) conducting mains voltage!
Use cable ends on fine-wire cables and avoid protruding wires!
3.2
Mains Connection
Before connecting the instrument to power please note:
Input voltage of the instrument must comply with local mains supply. Factory setting: 110 240 V; 50/60Hz, line cord with safety plug firmly connected. The DC version does not have
a line cord and is intended for connection to 12 V to 30V DC.
Install mains supply for the instrument separate from supply for machines and equipment
generating noise and/or interference (motors, relays, heatings, etc.). Even short spikes
and/or drop-outs may affect the correct function of the instrument and result in defects. If
problems of that nature are encountered, the installation of a voltage stabilizer or an
uninterruptable power supply unit (UPS) may help to overcome the difficulties.
IT3000P does not have a mains switch and is operational after connection to the mains
supply. Connection to the mains supply is made via the factory installed line cord (length of
cable 2.5m). Make sure that wall outlet is correctly grounded (not applicable to DC version).
If the line cord with connector is used as the means to separate the instrument from the
mains, the wall outlet must be installed close to the instrument and must be easily
accessible! If a permanently connected mains cable is used, an easily accessible separator
must be included in the supply circuit!
Technical Manual IT3000P KE
3.3
5
Rev. 1
Setup Of The Instrument
Ambient temperature for operating the unit may range from –10°C to +40°C, at a maximum of 95%
relative humidity, without condensation. Exposure to direct sunshine should be avoided.
For wall-mount applications the terminal can be fixed at the wall first, the connection cables can be
fitted later with the lid of the housing removed.
3.4
Opening Of The Housing
To open the housing a size 7mm wrench is required. Please make sure that cables running from the
various modules to display and keyboard are not torn off or damaged when lid is removed.
3.5
Connection Of Cables
All cables are led into the housing through cable glands. Required size of wrenches: PG9 → 17mm;
PG11→ 20mm.
Cable jacket
Shield
Wires
Compression nut
Plastic insert
Bushing
Counter nut
Cable connection through cable glands:
1.
Slide compression nut over cable jacket;
2.
Slide plastic insert (retainer) over cable jacket until inner end is aligned with cut end of
jacket;
3.
Unravel shield, bend over retainer and push into retaining comb. Cut wires of shield to
length of comb, avoid protruding wires;
4.
Insert retainer with cable into bushing;
5.
Screw compression nut onto bushing and use wrench to tighten securely.
6.
Cut cable ends as short as possible and make sure that they cannot touch any parts
(mains cable, power supply) conducting mains voltage!
Use cable ends on fine-wire cables and avoid protruding wires!
6
Technical Manual IT3000P KE
3.6
Connection Of Scale
3.6.1
Analog Understructures And Loadcells
Rev. 1
IT3000P provides connection for weighing platforms and loadcells as specified below:
• Max. 16 strain gauge loadcells 350 Ω each,
• Overall impedance 21.5 Ω ... 4500 Ω
• W&M approved resolution of 6000d at a max. preload of 80%, internal resolution 524,000d
• Smallest permissible input signal for approved applications: 0.33 µV / e
• Update rate 50 updates / second
• Loadcell excitation: 5 V ±5%.
Terminal assignment terminal strip KL1 on CPU3000P main module:
Terminal Assignment KL1
6
1
+ Excitation
2
– Excitation
3
+ Sense
4
– Sense
5
+ Signal
6
– Signal
Terminal KL1
understructure
with analog loadcell(s)
Connection of 4-wire loadcell:
To connect loadcells without sense lines (4-wire connection), two jump leads must be connected at
terminal strip KL1 between terminal 1 and 3, and between terminal 2 and 4.
For the installation of connection cables for analog weighing platforms please follow the recommendations listed below:
Only use suitable loadcell cable, e.g. 4 x 0.75mm² + 2 x 1mm², shielded, SysTec order-No.
10KAB211. Unsuitable loadcell cable may affect accuracy.
Nominal voltage of cable ≥250V.
Connect shield of cable only at cable gland of IT3000P terminal.
Distance between loadcell cables and power lines: ≥0.5m. Loadcell cables to be installed in
grounded metal conduits, metal hoses or metal cable trays.
Maximum length of connection cable between weighing platform and IT3000P: 100m
If tension load is applied to loadcells instead of compression load, connection for +Signal
and –Signal must be switched.
Technical Manual IT3000P KE
3.6.2
7
Rev. 1
Securing Scale Parameters
The scale parameters are stored in EEPROM and secured by setting the jumper W1 to position 1 - 2:
Parameters
secured
Jumper W1
1
Parameters
not secured
1
6
Jumper W1 for calibration
W&M approved applications require that the calibration parameters be protected against unauthorized
modifications. To that effect the jumper can be sealed with thread and lead seal.
For a description of the scale calibration refer to the respective chapter.
8
3.7
Technical Manual IT3000P KE
Rev. 1
Serial Interfaces
KL7
SIM1
> RS232
Connection of serial interface on the main module:
6
1
5
Terminal strip KL2
Service interface
3.7.1
1
5 1
8
Insert with
notch pointing
to bottom!
Terminal strip KL3 /
Connector KL7
Profibus DP
Connection Of Service Interface
The service interface is used to connect a PC for back up and restoring of data, it is activated by
inserting an RS232 interface module.
Terminal assignment interface COM1:
Terminal assignment KL2: Serial interface 1 (COM1)
3.7.2
Terminal #
Service interface RS232
1
TxD
2
RTS
3
RxD
4
CTS
5
Gnd
Connection Of Profibus DP
The Profibus DP slave address is set in Service Mode, group 'General'. For the configuration of the
Profibus master, the GSD file is used which is supplied with the unit.
Terminal assignment Profibus DP interface:
Terminal strip KL3: Profibus DP
Terminal #
Profibus DP
1
RTS
2/4
B Line
3/5
A Line
Connector KL7: Profibus DP
Pin #
Profibus DP
1
+5V
2
Gnd (5V)
Technical Manual IT3000P KE
9
Rev. 1
Pin assignment DSUB connector (only IT3000P in panel-mount version). Both, Profibus DP and service
interface COM1 are available at the 9-pin DSUB connector:
Female 9-pin DSUB connector
Pin #
Service (RS232)
Profibus DP (RS485)
Color of wire
1
TxD
—
green
2
RTS
—
yellow
3
—
B Line
red
4
RxD
—
brown
5
—
Gnd 5V
black
6
—
5V
pink
7
CTS
—
white
8
—
A Line
blue
9
Gnd
—
gray
Function of jumpers on CPU3000P board for bus termination:
Jumper
Profibus DP interface
W4
Pull-up resistor
W5
Termination resistor
W6
Pull-down resistor
If the ProfiBox is installed at the physical end of the bus, the lines must be terminated by means of the
jumpers W4 - W6. The bus is terminated when the jumpers are closed.
10
3.8
Technical Manual IT3000P KE
Rev. 1
Connection Of Parallel I/Os
The parallel input/outputs on the CPU3000P board can be activated by inserting a plug-on module. The
module provides drivers for two opto-isolated inputs and two opto-isolated outputs.
Rating of outputs: 24VDC, 100mA; rating of inputs: 7mA @ 24VDC.
Principal schematics:
IN1
OUT+
+
-
Ri
3K3
IN0
+
-
OUT0
IN–
OUT1
Parallel output
Parallel input
KL7
PIM
> PIM
Position and assignment of parallel inputs/outputs on CPU3000P board:
6
1
5
1
5 1
8
Insert with
notch pointing
to bottom!
Terminal strip KL4
Terminal assignment:
Terminal strip KL4: parallel inputs and outputs
1
OV
2
+10V
3
IN0
Input IN0
4
IN1
Input IN1
5
In–
for IN0 - IN1
6
OUT0
Filling fast
7
OUT1
Filling slow
8
OUT+
for OUT0 - OUT1
for external switches only!
Note: The internal 10VDC supply (KL4, terminal 2) may be used to connect switches and push buttons
to the digital inputs (15mA max.). The step-up regulator that generates this voltage is short circuit
proof for 1 sec max. External devices connected to the digital outputs must always be supplied from a
separate 24VDC power supply.
Technical Manual IT3000P KE
11
Rev. 1
4
Operation / Settings
4.1
Display And Keyboard
~
F
Display line:
Gross or net weight or operator prompt and entry
Symbol: Scale in gross zero range (±0.2d)
Symbol: Scale in motion
Info and scale keys:
Info
Scrolling forward, call up Service Mode in the initial step
Taring (Autotare), if scale is tared: clear tare
Set gross weight to zero
Function keys:
F8
Terminate operating mode 'ONLINE P'
Fx
Access function defined in application program;
F0
Switch weight display to tenfold resolution (in the basic step of the
sequence), display falls back to normal mode after approx. 5 sec.
Clr
Numeric entry: press key once → clear entry
Alphanumeric entry: short key stroke → clear last character (can be
repeated several times to clear more than one character); hold key
down for approx. 1 sec → clear the whole entry
↑
Return to previous program step
↵
Confirm entry, continue with next program step
Total
Numeric keypad:
Not applicable to IT3000P
Entry of numeric data, confirmation 'Yes' (=1) - 'No' (=0) and entry
of alpha characters via multiple key assignment
12
4.2
Technical Manual IT3000P KE
Rev. 1
Operator Prompting
The following sections describe the operating sequence of the weighing terminal with operator prompts
and the requested entries.
The contents of the terminal display is shown in a frame on the left hand side. Next to the display the
possible operator entries are listed, on the right hand side comments and explanations are shown.
Password
Entry of 4-character password
????
↑
Return to normal operation
Prompts or entries that apply only under certain conditions are shown in an extra frame. The condition
is shown in bold face in the upper left hand corner of the frame.
PC not ready:
PC Not Ready !
Error message: PC is not ready for data transmission
This message is only displayed when an error occurs.
↵ -key (Enter) and ↑-key
In all program steps, unless otherwise specified, the ↵ -key (Enter) leads to the next step. Pressing the
↑ -key leads to the previous step.
Technical Manual IT3000P KE
5
13
Rev. 1
Service Mode
The Service Mode is a program for configuration of the IT3000P weighing terminal.
After powering the terminal up, the messages with display of program version and date and time are
displayed. After that the program proceeds to the initial step. By pressing the Info-key while the power
up messages are displayed, the Service Mode is called up. The Service Mode includes the functions to
calibrate the scale and set the Profibus address.
Display for approx. 1.5 sec
Version 9.99 999999
Info
Display for approx. 1.5 sec
Application: ONLINE
Info
Call up Service Mode
Display for approx. 1.5 sec
Service Mode
Password
Call up Service Mode
Entry of 4-character Service Password
????
↑
Return to normal operation
Enter parameters for language and slave address
(see chapter 7 'Entry Of Slave Address')
Service: General
Info
Choose with Info-key and confirm with ↵-key
Calibrate scale;
(see chapter 6 'Calbrate Scale')
Service: Calibrate
Info
Choose with Info-key and confirm with ↵-key
Backup data on PC;
(see chapter 10 'Backup')
Service: Backup
Info
Choose with Info-key and confirm with ↵-key
Restore data from PC;
(see chapter 11 'Restore')
Service: Restore
Info
Choose with Info-key and confirm with ↵-key
Test hardware;
(see chapter 'Harware Test')Hardware testen
(see chapter 12 'Hardware Test')
Service: Test
Info
Choose with Info-key and confirm with ↵-key
When Service Mode is exited, the entered or modified parameters are stored.
Saving...
Exit Service Mode and store changes, return to normal
operation
14
6
Technical Manual IT3000P KE
Rev. 1
Calibration
The calibration mode of the IT3000P terminal provides a variety of options and settings. In practice,
however, it is sufficient in virtually all cases to accept the factory settings and simply calibrate zero
and load. This only requires entries of the appropriate values in group 1 and 2.
Described below is this simplified method, a detailed description of all options for the expert can be
found further below in this manual.
Prior to power up the jumper W1 must be set to position 2 - 3. Only with this jumper setting can the
changed parameters be saved in memory after the calibration.
CPU3000P
Jumper W1 in Position 2 - 3
Jumper W1
1
6
6.1
Select Group
After entering the calibration mode, the first menu item is displayed:
Calibrate scale
Service: Calibration
If jumper W1 is still in position 1 - 2:
Warning: jumper not in calibration position, parameters
cannot be saved!
Calibration Locked
↵
Enter calibration mode without saving (e.g. to check
settings)
Technical Manual IT3000P KE
15
Rev. 1
Select parameter group:
Select Group 1-7
1
Scale Parameters
2
Calibration
3
Linearization
4
Zero Adjust
5
Adaptation
6
High Resolution
7
Reset Parameters
Info
Scrolling forward
↑
Save changes and return to menu
After pressing the ↑-key in step 'Select Group 1-7', the display shows the message:
Save Parameters?
Save parameters in EEPROM
Y
Info
Y:
Save parameters
N:
Ignore all changes, do not save data
Scrolling
If jumper W1 is still in position 1 - 2:
Error message: jumper not in calibration position,
parameters cannot be saved!
Error Calibr. Jumper
↵
Exit calibration without saving
16
Technical Manual IT3000P KE
6.2
Rev. 1
Example
The following example shows how simple it is with just a few steps to enter the parameters for
weighing range and increment size and to calibrate the scale.
Example: Floor scale with 6000 kg weighing range and an increment size of 2 kg.
Please follow the instructions below and ignore all other options. First call up group 1 of the calibration
mode and either confirm the default settings with the ↵-key or choose appropriate setting with the
Info-key and then confirm with the ↵-key.
Select Group 1-7
1
Scale Parameters
Single Range
Single Range (one undivided range from zero to load)
One Interval
One Interval (one increment size over the full range)
Capacity
999999
Entry of scale capacity (weighing range), 6 digits max.
Interval
999999
Entry of increment size (smallest displayed interval),
6 digits max.
Example: 'Capacity 6000'
Example: 'Interval 2'
Unit
Select unit sign (g, kg, t, lbs)
kg
Example: 'Unit
kg'
That completes the settings for weighing range and increment size. In The next step, please call up
group 2 for calibration of zero and load.
Select Group 1-7
2
Geo Value
Calibrate Zero?
99
Y
Calibration
Entry of Geo value, factory setting for calibration at
location of use = 20
Scale Zero Calibration.
Unload the scale and confirm to start the calibration.
Calibrating...
Measuring Zero signal.
Message for approx. 6 sec
Technical Manual IT3000P KE
17
Rev. 1
Zero:
9999999
Display of actual weight with tenfold resolution (for
verification).
Zero(mV/V):
9999999
Display of rated signal (for information only).
(e.g. 0.23785)
Calibrate Load?
Load calibration weight on scale.
Y
For best results use the highest possible calibration
load (=weighing range).
Default calibration weight (=weighing range), 6 digits
Calibr.Weight 999999
Clr
↵
Calibrating...
Clear displayed default value and enter chosen
calibration weight.
Apply load and start calibration
Measuring load signal.
Message for approx. 6 sec.
Load:
Load(mV/V):
9999999
999999
Display of actual weight with tenfold resolution (for
verification).
Display of rated signal (for information only).
(e.g. 0.52243)
This completes the calibration and you can now exit calibration mode.
A detailed description of all other settings and options is given further below in this manual.
18
7
Technical Manual IT3000P KE
Rev. 1
Set Slave Address
The slave address is set in the group 'General' of the Service Mode. In this group also the language for
text displays is selected.
Service: General
Enter parameters
Language: German
Select language for text displays, options:
German
English
French
Polish
Dutch
Italian
Spanish
*)
*)
*)
*)
*)
*) not yet supported in this software version
Info
Slave Address
ServicePassword _
999
Select
Enter 3-digit slave address for Profibus.
Entry of a 4-digit Service Password.
Important note! After entry and storage of a self-defined Service Password, the factory set default
password is no longer valid! The Service Mode can then only be accessed via the new password!
Technical Manual IT3000P KE
8
19
Rev. 1
Weighing Functions
The basic step of the operating sequence is the display of the current weight. After power up the
terminal starts automatically in the operating mode 'ONLINE P' and is ready for remote control via
Profibus DP. If the display does not show a valid weight (e.g. ------), Profibus communication is not
operational.
Weighing functions in the operating mode 'ONLINE P':
O1
Display of gross weight in the operating mode
'ONLINE P';
25.60 kg
For Multiple Range scales the currently seleted range
(e.g. O1.2) is shown, for scales with one range only
always O1 is displayed.
Functions in the operating mode 'ONLINE P':
Set gross weight to zero, only within zero setting
range (factory setting ±2%).
F0
Display of weight with tenfold resolution, display falls
back to normal mode after approx. 5 sec.
F1
Call up monitor for input words
F2
Call up monitor for output words
F8
Terminate operating mode 'ONLINE P' and switch to
'Simple Weighing'.
Functions in the operating mode 'Simple Weighing':
W1
Display of gross weight in the operating mode 'Simple
Weighing' (indicated by W1).
25.60 kg
The bit 15 in data word EW4 is not set and data
transmission over Profibus is disabled.
↑
F0
X10
Return to operating mode 'ONLINE P'
Switch weight display to tenfold resolution
Weight display with tenfold resolution.
25.604 kg
Display falls back to normal mode after approx. 5 sec.
Set gross weight to zero (only within selected range
for pushbutton zero)
Autotare: By pressing the tare-key the scale is tared
W1
0 kg NET
Clear tare and return to indication of gross weight
W1
25.60 kg
Tara Entry
Manual tare: After pressing a numeric key, entry of
manual tare is enabled,
______1
↵
after entry of a complete tare weight and pressing the
Enter-key the net weight is displayed.
20
W1
Technical Manual IT3000P KE
15.40 kg NET
Info
Use Info-key to display tare weight.
10.20 kg TAR
Tare weight when scale was autotared.
10.20 kg PT
Tare weight when scale was manually tared.
↵
Return to display of net weight
Clear tare and return to display of gross weight.
Rev. 1
Technical Manual IT3000P KE
9
21
Rev. 1
Connection To Host System
In the operating mode 'ONLINE P' all functions of the weighing terminal are remotely controlled from
the host system via Profibus DP. The transmission of data takes place through the exchange of data
words. IT3000P supports Profibus DP communication at a baud rate of 12MBit/sec.
9.1
Representation Of Input And Output Words
Weights are always represented without decimal point, trailing decimals are indicated as per the scale's
calibration (weight as shown on the display).
Important note: The bit address in the I/O range of a PLC is organized byte-wise, i.e. EW0 (input word
0) is split into EB0 and EB1 (input byte 0 and 1) with EB1 containing the less significant bits!
Numerical representation as 16-bit binary number or bit pattern:
n
Word-No.
Byte-No.
n (High-Byte)
n+1 (Low-Byte)
Bit-No.
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01
00
Value
215 214 213 212 211 210
20
29
28
27
26
The range of values for 16-bit integer numbers is –32768 to 32765.
25
24
23
22
21
22
Technical Manual IT3000P KE
9.2
Input And Output Words
The following tables show an overview on the contents of the supported data words:
9.2.1
Input Words Of PLC
EW Word
Contents
0
1
Digital inputs
Word
Type
*)
digital outputs *)
Discr. bits
Discr. bits
Bit
Addr.
Bit
Contents
.0
Input E0
.1
Input E1
.0
Output A0
Filling fast
.1
Output A1
Filling slow
.2
2
Net weight
Integer number
3
Gross weight
Integer number
4
Status
Discr. bits
.0
Gross under zero
.1
Overload
.2
Scale in motion
.3
Error scale
.4
Number of trailing decimals 20
.5
Number of trailing decimals 21
.6
Number of trailing decimals 22
.7
Weight x10
.8
Handshake
.9
Status (1 = command carried out)
.10
Out of tolerance
.11
Flow rate low
:
.15
5
Step counter (status of
program during filling)
Integer number
Discharging
reserved
Ready for start
0
Ready
1
Taring
2
Filling fast
3
Filling slow
4
Tolerance check not released
5
Tolerance check
6
Jogging
7
Out of tolerance
6
Net
Float number
High word
7
Net
Float number
Low word
8
Gross
Float number
High word
9
Gross
Float number
Low word
Integer number
0
Ready
1
Discharging
2
Extended discharging
3
Waiting on no-motion
10 Step counter (status of
program during
discharging)
*) See note at the end of table.
Rev. 1
Technical Manual IT3000P KE
23
Rev. 1
EW Word
Contents
Word
Type
Bit
Addr.
Bit
Contents
11
Integer number
Targt filling / discharging
12
Integer number
Preact slow after correction
13
reserved
14
:
23
Parameter of calibration for upload
IT3000P → PLC
24
reserved
The data word EW0 mirrors the status of the two digital inputs E0 and E1 of the IT3000P when an
optional PIM module is installed.
The data word EW1 contains the signals 'filling fast', 'filling slow' and 'discharging'. If an optional PIM
module is installed, the signals 'filling fast' and 'filling slow' are also available as parallel outputs,
however the signal 'discharging' must be output via the PLC.
24
Technical Manual IT3000P KE
9.2.2
Output Words Of PLC
AW Word
Contents
Word
Type
0
Discr. bits
Commands
Bit
Addr.
Bit
Contents
.0
Set zero
.1
free
.2
free
.3
free
.4
free
.5
Get settled weight
.6
free
.7
free
.8
free
.9
free
.10
free
.11
:
.14
free
free
free
.15
free
Rev. 1
Technical Manual IT3000P KE
25
Rev. 1
9.3 Exchange Of Control Signals
Receipt and execution of commands (see also output word 0) is acknowledged through bits 8 and 9 of
data word 4 with handshake as per the following diagram:
1
2
3
4
Command
Handshake
(bit 8)
Signal
undefined
Status
(bit 9)
Yes
Carried out
successfully
No
Explanation: The receipt of a command (rising edge 1) is acknowledged with bit 8 (command received,
rising edge 2). After that the command can be reset (falling edge 3). Once the command is reset and
the instruction carried out, bit 8 is reset and bit 9 is set to a defined state (falling edge 4). If bit 9 is '1'
that means that the instruction could be carried out correctly, if it is '0' that indicates an error, e.g.
timeout.
Handshake signalling as described above applies to the commands (bits in output word 0) as follows:
.0
9.3.1
Set zero
Set Scale To Zero
If the weight is within zero setting range, the scale can be set to gross zero by means of bit 0 in data
word 0.
Write:
AW 0
.0
Command for scale function 'Set Zero'
Read:
EW 4
.8
Handshake signal
.9
Confirmation
9.3.2
Get Settled Weight
Write:
AW 0
.5
Command for scale function 'Get Settled Weight'
Read:
EW 4
.8
Weight is valid
The PLC sets the bit 5 in OW 0. The IT3000P reads the settled weight and writes it into the data
words EW2, EW3, EW6, EW7, EW8, EW9 and after that it sets the bit 8 in EW 4. When the bit 8 in
EW is high the data are valid. The data words are cleared after the bit 5 in OW 0 is reset to zero.
26
9.4
Technical Manual IT3000P KE
Rev. 1
Data Word Monitor
With the data word monitor it is possible in the operating mode 'ONLINE P' to check the contents of
input and output data words during running operation. The monitor is called up with the function keys
F1 (input words) and F2 (output words), respectively.
O1
Display in operating mode 'ONLINE P'.
1234 kg
Except for the function keys listed below, the
keyboard is locked.
F0
Switch weight display to tenfold resolution, automatic
reset after approx. 5 sec.
F1
Call up monitor for input words
F2
Call up monitor for output words
F8
Exit operating mode 'ONLINE P'
Set gross weight to zero (within permissible zero
setting range)
Data word monitor called up with F1:
IWØ
IW6
16
Monitor for input words (as seen from PLC), display of
data word 0 (decimal and hexadecimal)
$0010
↵
Continue with next data word
↑
Return to previous data word
0..9
Enter number of data word whose contents is to be
displayed
Info
Exit data word monitor
For weight values that are transmitted in float format,
the weight value is shown on the left hand side (as it
appears on the display). Separated by a decimal point,
on the right hand side the float number is shown in
high word or low word, respectively.
1147. $448F
Example: Net weight = 1147kg,
High word in data word IW6
↵
IW7
1147
Continue with next data word
$6000
Beispiel: Net weight = 1147kg,
Low word in data word IW7
Data word monitor called up with F2:
OWØ
16
Monitor for output words (as seen from PLC)
$0010
↵
Continue with next data word
↑
Return to previous data word
0..9
Enter number of data word whose contents is to be
displayed
Info
Exit data word monitor
Technical Manual IT3000P KE
10
27
Rev. 1
Backup
The settings in Service Mode can be transferred to and saved on a PC. This provides the option to
archive configurations for different applications and to download them into new terminals.
Transfer data to PC,
Service: Backup
terminal must be connected to PC with the IT3000
Configurator program installed and started and the
interface parameters set accordingly.
Confirmation, all parameters set?
PC Ready To Save?
PC not ready:
Error message PC not ready
PC Not Ready !
Display during data transmission
Saving...
11
Restore
This function is used to download a stored configuration into the weighing terminal.
Download data into weighing terminal,
Service: Restore
terminal must be connected to PC with the IT3000
Configurator program installed and started and the
interface parameters set accordingly.
IT Ready To Restore
F8
Abort transmission
Please note: The setting of the slave address is not saved and restored.
28
12
Technical Manual IT3000P KE
Rev. 1
Hardware Test
Exercise utmost care when making checks, tests and adjustments that can actuate
movable parts such as feeding devices, gates, flaps, conveyors, etc. Make absolutely sure
that nobody is within reach of movable parts.
Failure to observe this precaution could result in bodily injury!
Service: Test
Select hardware test
DIn: 10
Display state of the two optional digital inputs and
outputs (1 = input/output set).
DOut: 01
With the keys 0 and 1 of the numeric keypad, the
outputs 0 (key 0) and 1 (key 1) can be set / reset.
The picture on the left shows the state:
input 0
= Off
input 1
= On
output 0
= On
output 1
= Off
Technical Manual IT3000P KE
13
29
Rev. 1
Options For Calibration
13.1 General Parameters
In most applications IT3000P is calibrated as single-range scale with one interval (increment size),
however, it is also possible to calibrate as multiple-range and multi-interval scale.
13.1.1 Multiple-Range Scale
Calibration is possible as Single, Dual or Triple Range Scale. The different ranges have different
capacities and scale intervals.
Example: Triple Range Scale with a resolution of 3000 increments for each range:
First range:
0 – 1500kg / 0.5kg
Second range:
0 – 3000kg / 1.0kg
Third range:
0 – 6000kg / 2.0kg
When a Multiple Range Scale is loaded, the scale display changes automatically from a lower to a
higher range. During unloading of the scale, the scale display remains in the higher range. If the scale
was tared (weighing in net mode), on return to gross zero the tare is only cleared when the tare key is
presed. Only after clearing the tare, the display returns to gross mode and switches back to the
smallest range.
Automatic switching back to the smallest range on reaching zero is only carried out if the scale was
not tared (weighing in gross mode).
Example of a weight curve for loading and unloading a Multiple Range Scale showing the weight and
the displayed scale interval:
Gross Weight/kg
6000
3000
1500
0
Scale Interval/kg:
t
0.5
1.0
2.0
0.5
When the scale is loaded further after it was tared, the tare weight is rounded automatically to the next
scale interval as soon as the display is switched from one range to the next.
The Multiple Range Scale provides weighing of light and heavy loads on the same scale with a high
degree of accuracy.
As a restriction for the configuration of scale intervals, the decimal point location must be identical for
all ranges. Example: Use 0.5kg and 1.0kg instead of 0.5kg and 1kg.
The maximum resolution of the loadcells (e.g. 3000d) must not be exceeded in any of the scale ranges.
30
Technical Manual IT3000P KE
Rev. 1
13.1.2 Multi-Interval Scale
A Single Range Scale can be configured as Multi Interval Scale with two or three different interval
ranges.
Example for a triple Interval Scale:
First interval range:
0kg – 1500kg / 0.5kg
Second interval range:
1500kg – 3000kg / 1.0kg
Third interval range:
3000kg – 6000kg / 2.0kg
The scale display changes automatically from one interval range to the next during loading and
unloading of the scale.
Example weight curve for loading and unloading a Multi Interval Scale showing the weight and the
scale interval displayed:
Net W eight/kg
6000
3000
1500
0
Scale Interval/kg:
t
0.5
1.0
2.0
1.0
0.5
After taring the scale, the scale display shows the net weight with the smallest scale interval. Small
weights are shown with the highest accuracy, even when the scale is already loaded to a higher
weighing range. Restriction: The max. permitted tare weight must not exceed the weight of the range
with the smallest interval.
A Multi Interval Scale is configured by entering the capacity and the scale interval of the smallest
interval range. The other ranges are configured automatically.
Example for configuring a Dual Interval Scale:
Scale capacity
1500kg
Smallest scale interval required
0.2kg
Using a loadcell, suitable for multi interval scales with 3000d resolution, the smallest interval range is
calculated as follows:
Smallest capacity = smallest scale interval x resolution = 0.2kg x 3000 = 600kg
The second range is automatically configured with the next highest interval: 0.5kg. The second interval
range is calculated as follows:
Second capacity = next higher interval x resolution = 0.5kg x 3000 = 1500kg
As a result, the two interval ranges for the Dual Interval Scale are:
First interval range:
Second interval range:
0 – 600kg / 0.2kg
600 – 1500kg / 0.5kg
Technical Manual IT3000P KE
31
Rev. 1
13.1.3 Adaptation To Scale Environment
The following parameters can be set to obtain optimum weighing results:
•
•
•
•
•
•
Motion window size and number of measurments for motion detector
Filter strength of the digital filter for unstable scales
Auto Zero Range for Auto Zero Function
Pushbutton Zero Range for Zero-key
Power Up Zero Range
Overload Threshold for display blanking.
13.1.4 Setting Of Geo Value
Before calibrating the scale, the Geo Value must be entered, e.g. Great Britain = 21 (see also chapter
Geo Values). If the scale is calibrated at one location and moved to another location later, it is
sufficient to re-enter the Geo Value of the new location.
13.1.5 Weights & Measures Approved Applications
The highest W&M certified resolution (Scale Capacity / Scale Interval) is 6000 increments (with a max.
of 80% deadload).
W&M approved installations require parameter setting in the group 'Adaptation' as follows:
•
•
•
•
•
•
Motion Window:
Motion Counter:
Auto Zero Range:
Pushbutton Zero:
Power Up Zero:
Overload:
0.5d
≥7
0.5d
±2%
±2% or ±10%
max. 9 d
The scale settings are stored in an EEPROM and are sealed by Weights & Measures to prevent
unauthorized modification.
13.2 Entering Calibration Mode
Prior to power up the jumper W1 must be set to position 2 - 3. Only with this jumper setting can the
changed parameters be saved in memory after the calibration.
CPU3000P
Jumper W1 in Position 2 - 3
Jumper W1
1
6
32
Technical Manual IT3000P KE
Rev. 1
13.3 Scale Parameters
In this group the weighing ranges, scale intervals and the scale unit are selected. The scale can be
configured as Single Range, Dual Range or Triple Range Scale. A Single Range Scale can be configured
as Multi Interval Scale with two or three different scale intervals.
Select Group 1-7
1
Scale Parameters
Select number of scale ranges:
Single Range: Single Range Scale with one, two or
three intervals
Dual Range:
Scale with two ranges
Triple Range: Scale with three ranges
Single Range
Info
Scroll list
If 'Single Range' has been selected:
A Single Range Scale can be configured as Single- or
Multi-Interval Scale. Options:
One Interval
One Interval or
Two Intervals or
Three Intervals or
Additive Tare = Single Range scale with additive tare
(not for W&M approved applications)
Info
Capacity
999999
Scroll list
Single Range capacity entry (6 digits).
If 'Two Intervals' or 'Three Intervals' has been
selected, entry of the smallest interval range. (See
also chapter Multi Interval Scale).
Example: 'Capacity 1500'
Interval
999999
Single Range scale interval entry (6 digits).
If 'Two Intervals' or 'Three Intervals' has been
selected, entry of the smallest scale interval. (See also
chapter Multi Interval Scale).
Example: 'Interval 0.5'
Scale interval list:
0.0001, 0.0002, 0.0005, 0.001, 0.002, 0.005, 0.01, 0.02,
0.05, 0.1, 0.2, 0.5, 1, 2, 5, 10, 20, 50
Technical Manual IT3000P KE
33
Rev. 1
If 'Dual Range' has been selected:
High Capacity 999999
Entry of capacity of the highest scale range
(6 digits):
Example: 'High Capacity 6000'
High Interval 999999
Entry of interval of the highest scale range
Low Capacity
Entry of capacity of the lowest range
(6 digits):
999999
Example: 'High Interval 2'
Example: 'Low Capacity 3000'
Low Interval
999999
Entry of interval of the lowest scale range.
Example: 'Low Interval 1'
Note: The number of trailing decimals must be
identical in both ranges.
If 'Triple Range' has been selected:
High Capacity 999999
Entry of
(6 digits)
capacity
of
the
highest
scale
range
Example: 'High Capacity 6000'
High Interval 999999
Entry of interval of the highest scale range
Example: 'High Interval 2.0'
Mid Capacity
999999
Entry of
(6 digits)
capacity
of
Example: 'Mid Capacity
Mid Interval
999999
Entry of
(6 digits)
interval
of
the
medium
scale
range
medium
scale
range
lowest
scale
range
3000'
the
Example: 'Mid Interval 1.0'
Low Capacity
999999
Entry of
(6 digits)
capacity
of
the
Example: 'Low Capacity 1500'
Low Interval
999999
Entry of interval of the lowest scale range
Example: 'Low Interval 0.5'
Note: The number of trailing decimals must be
identical in all three ranges.
34
Technical Manual IT3000P KE
Rev. 1
If 'Single Range' has been selected with 'Additive Tare':
TotalCapacity 999999
Entry of total scale capacity.
Capacity
Entry of weighing range.
Example: 'Total Capacity 1500'
999999
Example: 'Capacity 300'
Interval
Entry of increment size.
999999
Example: 'Interval
0.1'
Please note: For the time being, calibration as single range scale with additive tare is not permitted for
scales that are subject to Weights & Measures approval.
Unit
Select a unit. Options: kg, g, t, lb
kg
Info
↵
Scroll list
Return to 'Select Group'
Technical Manual IT3000P KE
35
Rev. 1
13.4 Calibration
The zero calibration and maximum load calibration are performed in this group. Instead of calibrating to
maximum load, a calibration with partial load is also possible.
The Geo Value entry permits the calibration at one place even if the scale is to be operated at a
different location. This compensates for the different forces of gravity without recalibration (not for
W&M approved applications). By means of entering the rated signals (mV/V), a scale can also be
precalibrated without test weights (see also chapter 'Precalibration').
Select Group 1-7
2
Geo Value
Entry of Geo Value. Enter the applicable Geo Value of
the calibration location (see also chapter Geo Values).
If Geo Value of place of installation is different, that
can be changed later.
99
Calibrate Zero?
Calibration
Scale Zero Calibration.
Y
Unload the scale and confirm to start the calibration.
Info
Scrolling Yes: Calibrate Zero
No:
↵
Continue in step 'Zero(mV/V)'
Zero Calibration
Measuring Zero signal.
Calibrating...
Message for approx. 6 sec
Zero:
Zero(mV/V):
Displays actual weight with tenfold resolution (for
verification).
9999999
↑
Return to step 'Geo Value'
↵
Continue
Display of rated signal
9999999
(e.g. 0.23785)
↑
Return to step 'Select Group'
Clr
Clear value and enter new one
↵
Continue with Span calibration
Please note: If Zero calibration parameters are to be stored before the Span calibration, the Setup must
be exited at this point of the sequence (return to step 'Select Group' and from there to step 'Setup').
Answer question 'Save Parameters?' with 'Yes'. After that Group 2 can be selected again to proceed
with calibration, Zero calibration can now be skipped.
36
Technical Manual IT3000P KE
Calibrate Load?
Rev. 1
Load calibration weight on scale.
Y
For best results use the highest possible calibration
load.
Info
Scrolling Yes: Calibrate Load
No:
Continue in step 'Load(mV/V)'
↑
Return to step 'Calibrate Zero?'
↵
Continue
Default calibration weight
(=weighing range), 6 digits
Calibr.Weight 999999
Clr
↵
Clear displayed default value and enter desired
calibration weight.
Apply load and start calibration
Measuring load signal.
Calibrating...
Message for approx. 3 sec.
Load:
Load(mV/V):
Displays actual weight with tenfold resolution (for
verification).
9999999
↑
Return to step 'Calibrate Load?'
↵
Continue
Display of rated signal
999999
(e.g. 0.52243)
Clr
↵
Clear value and enter new one
Return to step 'Select Group'
If the internal resolution is insufficient, an error message is displayed:
The internal resolution should be at least 10 times
higher than the entered resolution.
Resolution Error
Check calibration values and repeat calibration if
required.
↵
Return to 'Select Group'
To store calibration parameters exit step 'Select Group' and answer question 'Save Parameters' with
'Yes'.
Note: If changes of calibration parameters are to be ignored, setup must be exited and question 'Save
Parameters?' answered with 'No' before any other group of the calibration may be called up.
Technical Manual IT3000P KE
37
Rev. 1
13.5 Linearization
Certain weighing inaccuracies are the result of the inherent non-linearity of the load sensor. Up to 6
linearization points can be set freely to compensate this imperfection. Linearization points should be
entered at the points of the weighing curve where the greatest deviations (i.e. max. non-linearity) are
experienced.
Linearization points must be smaller than the max. weighing range. The linearization algorithm
interpretes the sections between two neighboring linearization points as a straight line.
Select Group 1-7
3
Linearization
Linearization points already entered:
Fixpoint n:
Display of linearization points (1 - max. 6)
999999
↑
Return to previous linearization point or step 'Select
Group', respectively
↵
Continue with next linearization point
Clr
Clr-key pressed in step 'Fixpoint n:
Delete Fixpoint?
Delete existing linearization point
999999':
N
Info
Scrolling Yes:
No:
Delete linearization point
Do not delete linearization point
↑
Return to previous linearization point or step 'Select
Group', respectively
↵
On Yes: Proceed to step 'New Fixpoint?'
On No: Continue with next linearization point
After deleting an existing fixpoint, the remaining ones are renumbered in rising order.
After display of the last linearization point or if no fixpoints have been entered yet:
New Fixpoint?
N
Info
Scrolling Yes:
No:
Enter new fixpoint
Do not enter new fixpoint
↑
Return to previous linearization point or step 'Select
Group', respectively
↵
On Yes: Continue
On No: Return to step 'Select Group'
38
Technical Manual IT3000P KE
Rev. 1
Enter linearization weight
Enter Fixpoint999999
Measuring the linearization signal
Linearization..
Message appears for approx. 6 sec
Weight:
Displays actual weight with tenfold resolution (for
verification)
9999999
↑
Return to previous linearization point or step 'Select
Group', respectively
↵
Continue in step 'New Fixpoint?'
A new fixpoint can be inserted between existing ones, after that all fixpoints are renumbered in rising
order.
13.6 Zero Adjust
In this group the scale's Zero point is readjusted. This feature is usefull when the calibration load was
applied on an auxiliary test rig (e.g. for overhead track scales). After removing the test rig, the absolute
Zero point can be adjusted.
Select Group 1-7
4
Zero Adjust
Unload test rig or other loads
Unload Scale
↵
Start Zero Adjust
Measuring the Zero signal.
Adjusting...
Message appears for approx. 6 sec
Zero:
Display of the new zero point with tenfold resolution
(for verification)
9999999
↑
Return to 'Unload Scale'
↵
Continue in step 'Select Group'
Technical Manual IT3000P KE
39
Rev. 1
13.7 Adaptation
In this group parameters are entered to adapt the scale to its environment.
Select Group 1-7
5
Motion Window
Adaptation
Entry of Motion Window Size.
OFF
A stable weight is detected (no motion) when the
number of consecutive weight readings (specified in
the next step) are within this window.
OFF: motion detector off
Window size: 3.0D, 2.0D, 1.0D, 0.5D
Info
MotionCounter
Scroll list
Entry of number of weight readings for motion
counter.
99
Specify the number of consecutive weight readings for
no motion detection.
(Factory setting: 20)
Filter Size
Entry of Filter Strength (for digital weight filter).
OFF
OFF: filter off
1 to 20: light to strong filtering
Default setting: 11
If the scale is very unstable (e.g. livestock scale) a
strong filtering is recommended.
Info
Scroll list
Select range for Automatic Zero Adjust. (E.g. enter
0.5D for a range from −0.5D to +0.5D.)
Auto Zero Range 0.5D
Zero tracking is enabled within the selected range.
OFF: Disable Zero Adjust
0.5D, 1.0D, 3.0D: zero tracking range
Info
PbZero (%) +
999
Scroll list
Select +range for Pushbutton Zero and Auto Zero
Tracking.
The scale can be set to Zero by pressing the Zero-key
within the specified range.
Factory setting: 2%
40
Technical Manual IT3000P KE
PbZero (%) -
Rev. 1
Select –range for Pushbutton Zero and Auto Zero
Tracking.
999
The scale can be set to Zero by pressing the Zero-key
within the specified range.
Factory setting: 2%
Select range for automatic Zero setting after power
up. (E.g. enter 2% for a range from –2% to +2% of
the scale capacity).
PowerUp Zero +/- 10%
After power up the scale will be automatically set to
Zero if the weight is within the selected range.
OFF: Disable Power Up Zero
±2%, ±10%: range
Info
Overload
Scroll list
Select the threshold for overload blanking. (E.g. enter
9 to set the limit to capacity + 9d).
99
The scale display shows '−−−−−−−' when the scale
weight exceeds the selected limit.
Example: 'Overload
↵
9'
Return to 'Select Group'
13.8 High Resolution
In this group the weight is shown with tenfold resolution. Use this group to check the scale accuracy.
Select Group 1-7
6
Weight:
High Resolution
Displays the actual weight with tenfold resolution (for
information only)
9999999
Set scale to zero
↵
Return to step 'Select Group'
Technical Manual IT3000P KE
41
Rev. 1
13.9 Reset Parameters
In this group the scale parameters can be reset to default values. After resetting the parameters the
scale must be reconfigured.
Select Group 1-7
7
Reset Parameters?
N
Info
Reset Parameters
No:
Do not reset parameters
Yes:
Reset parameters (see table)
Scroll Y/N
Factory Settings:
Group
Parameter
1 (Scale Parameters) Single/Dual/Triple Range
2 (Calibration)
5 (Adaptation)
Default
Single Range
Capacity
3000
Interval
1
Unit
kg
Geo Value
20
Zero (mV/V)
0.00000
Load (mV/V)
2.00000
Motion Window
0.5D
Motion Counter
20
Filter Size
11
Auto Zero Range
0.5D
Pushbutton Zero (+)
2%
Pushbutton Zero (–)
2%
Power Up Zero
OFF
Overload
9D
Calibration
42
Technical Manual IT3000P KE
Rev. 1
13.10 Factory Calibration
The calibration parameters of the A/D converter are stored in a powerfail safe EEPROM.
During testing and check out of a weighing terminal, the A/D converter is factory calibrated. I.e.
correction factors (Gain and Offset) are measured by means of precision simulators and stored to
equalize the different amplification values of the individual boards.
When a scale is calibrated, the rated values (mV/V) are measured for Zero (preload) and Load (preload
plus weighing range). Due to the factory pre-calibration (and resulting near-identical amplification),
these rated values can be transferred from one CPU3000 to another one, if there is a need to do so,
e.g. in the event of a break down to minimize down time. However, it is strongly recommended to
check the accuracy of the scale with test weights as soon as possible. Recalibration with certified test
weights is mandatory for scales that are subject to Weights & Measures approval.
Entry of rated values is made in Calibration Mode, Group 2, in the steps 'Zero(mV/V)' and
'Load(mV/V)'.
13.11 Calibration Without Test Weights
If the rated output signal of a scale's loadcell(s) is known, calibration can be made without test
weights. This information is available, for instance, for loadcell types D1, C2 and C3 OIML, for which
test reports are issued by the manufacturer stating rated output at Zero and Capacity.
Rated signals (preload and weighing range) of an arrangement of loadcells can be calculated as follows:
PL [kg,t] x CLC [mV/V]
Zero [mV/V] = ⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯
NLC x CapLC [kg,t]
and:
WR [kg,t] x CLC [mV/V]
Span [mV/V] = ⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯
NLC x CapLC [kg,t]
with:
Span
Rated signal of the arrangement
C
Rated signal of loadcell(s)
LC
Cap
N
LC
LC
Capacity of loadcell(s)
Number of loadcell(s)
WR
Weighing range of scale
PL
Preload
If more than one loadcell is connected, CLC must be calculated as the arithmetical mean value of the
individual loadcells.
If the rated signal at Zero can be measured, the calculation is not required. Load is calculated as
follows:
Load [mV/V] = Span [mV/V] + Zero [mV/V]
The value for Load [mV/V] can then be entered in the appropriate step of the calibration sequence.
Technical Manual IT3000P KE
43
Rev. 1
13.12 Geo Values
The Geo Value feature provides compensation for the different forces of gravity in different regions. A
scale can be calibrated at one location (with the Geo Value of this location) and shipped to a location
with a different Geo Value (= different force of gravity). To adjust the scale to its new environment it
is then sufficient to enter and store the Geo Value of the new loacation.
Please note that this feature is not available for scales that are subject to W&M approval.
Examples for Geo Values by Country:
Country
Geo Value
France
20
Finland
24
Belgium
21
Denmark
23
Germany
20
Great Britain
21
Ireland
22
Norway
24
Netherland
21
Austria
19
Switzerland
18
Sweden
24
Spain
15
44
Technical Manual IT3000P KE
Rev. 1
Table of Geo Values
Height above sea level (in meters)
Northern or southern
terrestrial latitude
0
325
in degrees and minutes
0°
5°
9°
12°
15°
17°
19°
20°
22°
23°
25°
26°
28°
29°
30°
31°
33°
34°
35°
36°
37°
38°
40°
41°
42°
43°
44°
45°
46°
47°
48°
50°
51°
52°
53°
54°
55°
57°
58°
59°
60°
62°
63°
64°
66°
67°
69°
71°
73°
75°
77°
80°
85°
0'
46'
52'
44'
6'
10'
2'
45'
22'
54'
21'
45'
6'
25'
41'
56'
9'
21'
31'
41'
50'
58'
5'
12'
19'
26'
32'
38'
45'
51'
58'
6'
13'
22'
31'
41'
52'
4'
17'
32'
49'
9'
30'
55'
24'
57'
35'
21'
16'
24'
52'
56'
45'
-
5°
9°
12°
15°
17°
19°
20°
22°
23°
25°
26°
28°
29°
30°
31°
33°
34°
35°
36°
37°
38°
40°
41°
42°
43°
44°
45°
46°
47°
48°
50°
51°
52°
53°
54°
55°
57°
58°
59°
60°
62°
63°
64°
66°
67°
69°
71°
73°
75°
77°
80°
85°
90°
325
650
650
975
975
1300
1300
1625
1625
1950
1950
2275
2275
2600
2600
2925
2925
3250
3250
3575
Height above sea level in feet
46'
52'
44'
6'
10'
2'
45'
22'
54'
21'
45'
6'
25'
41'
56'
9'
21'
31'
41'
50'
58'
5'
12'
19'
26'
32'
38'
45'
51'
58'
6'
13'
22'
31'
41'
52'
4'
17'
32'
49'
9'
30'
55'
24'
57'
35'
21'
16'
24'
52'
56'
45'
0'
0
1060
1060
2130
2130
3200
3200
4260
4260
5330
5330
6400
6400
7460
7460
8530
8530
9600
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
21
21
22
22
23
23
24
24
25
25
26
26
27
27
28
28
29
29
30
30
31
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
21
21
22
22
23
23
24
24
25
25
26
26
27
27
28
28
29
29
30
30
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
21
21
22
22
23
23
24
24
25
25
26
26
27
27
28
28
29
29
30
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
21
21
22
22
23
23
24
24
25
25
26
26
27
27
28
28
29
29
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
21
21
22
22
23
23
24
24
25
25
26
26
27
27
28
28
29
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
21
21
22
22
23
23
24
24
25
25
26
26
27
27
28
28
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
21
21
22
22
23
23
24
24
25
25
26
26
27
27
28
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
21
21
22
22
23
23
24
24
25
25
26
26
27
27
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
21
21
22
22
23
23
24
24
25
25
26
26
27
9600 10660
10660 11730
0
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
21
21
22
22
23
23
24
24
25
25
26
26
0
0
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
21
21
22
22
23
23
24
24
25
25
26
Technical Manual IT3000P KE
14
45
Rev. 1
Description Of Components
14.1 Main Module CPU3000P
The CPU3000P module is the core of the IT3000P weighing terminal. It contains an 80C51U2
microcontroller with 32 kByte of data and 64 kByte of program memory. Sockets are provided for the
optional installation of a serial interface (RS232 service interface COM1) and 2 parallel I/Os (PIM).
Layout of components on CPU3000P main module:
Jumper W4/W5/W6 bus termination
PIM
SIM1
Jumper W1
KL7
Power Supply
6
1
5
1
5 1
8
Terminal strip KL2
Terminal strip KL4
service interface
digital inputs / outputs
Terminal strip KL1 Terminal strip KL3 /
Terminal strip KL6 Terminal strip KL5
scale base with
PE
power supply
Connector KL7
analog loadcell
Profibus DP
14.2 Display
To indicate the weight, status information and operator prompts a back-lit 20-character LCD display is
used. The height of characters is 14mm, each character is formed by a matrix of 5x7 dots. The display
is connected at the 16-pin connector X1 on the main module.
46
Technical Manual IT3000P KE
Rev. 1
14.3 Power Supply 110 - 240 VAC
The auto sensing switching mode power supply unit operates on an input voltage ranging from 110
Volt (–15%) to 240 Volt (+10%), 50/60 Hz.
Parts of the power supply unit, in particular the heat sinks under the cover, are directly
connected to dangerously high voltages!
A defective power supply unit can only be replaced. Disconnect all power to the instrument
before servicing!
Position of soldering pins for input and output voltages:
FG
AC(N)
+V
—V
AC(L)
Assignment of connecting pins:
Connecting pin
Voltage
AC(N) / AC(L)
Input
110 - 240 VAC
+V / –V
Output
5 VDC (1A)
14.4 Power Supply 12 - 30 VDC
Alternatively, IT3000P is available in a version that operates on 12 V (–15%) to 30 VDC (+10%). For
this version a DC/DC converter is installed on the main module instead of the AC power supply. The
DC version has a fused input (1A slow blow). The output rating of the converter is 5VDC at 600mA.
F1
1A
5 1
8
+V Gnd
Terminal KL5
12 - 30 VDC
Technical Manual IT3000P KE
47
Rev. 1
14.5 Cable For Service Interface
Standard cable for serial interface:
RS232 PC cable with 9-pin female DSUB connector
Art.-No. 10KAB202
IT3000P
TxD
RTS
RxD
CTS
Gnd
1
2
3
4
5
PC
green
yellow
brown
white
gray
approx. 3m
2
8
3
7
5
1
4
6
RxD
CTS
TxD
RTS
Gnd
48
15
Technical Manual IT3000P KE
Rev. 1
Transport, Maintenance And Cleaning
15.1 Transport
Transport and storage of the IT3000P terminal shall only be made in the original packing
with foam cushion. The module must not be exposed to shock or vibration.
Transport and storage of electronic components such as boards, EPROMS, etc. must only
be made in suitable anti-static ESD bags or cases.
Storage temperature –25 to +70°C at 95% max. relative humidity without condensation.
15.2 Maintenance
This unit and its associated equipment must be maintained by qualified personnel only,
who are familiar with the construction and operation of all equipment in the system and
the potential hazards involved. Failure to observe these precautions could result in bodily
injury!
Disconnect all power to this unit before servicing!
The IT3000P terminal is designed to require a minimum of maintenance and service, however,
depending on the environmental conditions a visual inspection at regular intervals is recommended. The
frequency at which normal maintenance (cleaning and inspection) should be performed, when installed
in a clean office environment, should be twice a year. However, if the unit is subject to a dusty or dirty
environment the frequency should be increased as required. At these inspections it should be made
sure that all connected cables are undamaged and that all connectors are tightly fastened.
Maintenance of scale platforms is required at regular intervals depending on use and environment. The
accuracy of scales can be affected by dirt, foreign objects, etc. and appropriate maintenance is
strongly recommended. Also recommended is the calibration with certified test weights at regular
intervals.
15.3 Cleaning
Disconnect all power to this unit before cleaning!
Clean the keyboard and covers with a soft clean cloth that has been dampened with a mild window
type cleaner. Do NOT use any type of industrial solvent or the finish of the unit may be damaged. Do
not spray cleaner directly on the unit.
Technical Manual IT3000P KE
16
Rev. 1
49
Trouble Shooting
This unit does not contain any customer servicable parts!
Only permit qualified personnel to service this equipment. Exercise care when making
checks, tests, and adjustments!
If any problem arises that has not been explained above, please follow this check list:
• Power supply on and line cord undamaged (visual inspection)?
• All cables connecting to scales and peripheral devices undamaged (visual inspection)?
• Connectors fitted correctly and tightly secured at peripheral devices (visual inspection)?
If operational difficulties are encountered that cannot be rectified by means of this manual, obtain as
much information as possible regarding the particular trouble, as this may eliminate a lengthy, detailed
checkout procedure.
If possible, try first to determine the conditions under which the problem occurs. Try to find out
whether the appearance of the difficulties can be reproduced under the same conditions.
For the systematic analysis of an unknown problem the information as listed below is required:
• Serial-No. of the unit and its peripheral components
• Program version as displayed on power up
• Exact wording of any error message displayed
• Type and model of peripheral devices related to the problem (e.g. scale, printer, etc.)
To obtain professional assistance contact your service station stating the information listed above.
It is suggested that assistance from trained service personnel be requested in the event a
problem should arise that is beyond the scope of this instruction manual.
50
Technical Manual IT3000P KE
Rev. 1
16.1 Error Messages
If an error occurs during calibration or normal operation, error messages are displayed as follows:
Error Message
Possible Cause
Corrective Measure
During calibration:
Calibration Locked
• Jumper for protection of
calibration parameters in
position 'protected'
• Set calibration jumper to
calibration position
Error Calibr. Jumper
• Parameters cannot be
saved, jumper in wrong
position
• Set jumper to correct
position, repeat calibration
Error ADC TIMEOUT
• No data received from
A/D converter
• Replace A/D converter
• Short circuit in L/C cable
• Check cabling
Error ADC OVERRANGE
Resolution Error
A/D converter out of range,
because:
• Wiring error in L/C
connection
• Check cabling
• L/C defective
• Check L/C
• Internal resolution too
small, must be at least
tenfold the displayed
resolution
• Select bigger increment size
• No data from A/D
converter
• Replace A/D-converter
• Short circuit in loadcell
cable
• Check cabling
• Use L/C with lower capacity
During normal operation:
ADC Error
ADC Over
A/D converter overrange:
• Wiring error loadcell
• Check wiring
• Loadcell defective
• Check loadcell
• Scale heavily overloaded
• Unload scale
Technical Manual IT3000P KE
Error Message
W1
51
Rev. 1
--------
Possible Cause
Corrective Measure
• Scale in overload
• Unload scale
• CPU does not receive
data from weighing
interface
• Check internal and external
wiring and cabling
Power Up Zero Over
• Unload scale
• Error power up zero.
This message appears on
power up if the weight on
the scale exceeds the
power up zero range as
set in the calibration
(+2%,+10%).
Power Up Zero Under
• Apply dead load
• Weight below power up
zero range.
This message appears on
power up if the weight on
the scale is below the
power up zero range as
set in the calibration (–
2%, –10%).
Motion
• This message appears on • Settle scale
power up if the scale is in
motion and a stable
weight reading cannot be
obtained within the
power up zero range as
set in the calibration
(±2%, ±10%).
Further self-explanatory messages may appear.
52
17
Technical Manual IT3000P KE
Rev. 1
Technical Data
Housing:
Stainless steel wall/desk housing, protected to IP65, weight approx. 1.5kg
Temperature Range: Storage: –25°C to +70°C at 95% relative humidity max. without condensation
Operation: –10°C to +40°C at 95% relative humidity max. without condensation
Power Supply:
Wide range AC input 110 V (–15%) to 240 V (+10%), 50/60Hz
Option: wide range DC input 12 VDC (–15%) to 30 VDC (+10%)
Power consumption max. 15 VA
Fieldbus:
Profibus DP on board (12MBit/s)
Electrical Safety:
Separation between primary and secondary circuits SELV, in accordance with EN
60950, over-voltage category II
Display:
Back-lit LCD display, 20 characters, height 14mm, 5x7 dot matrix
Keyboard:
Membrane keyboard with tactile feedback, 20 keys incl. numeric keypad, scale
keys and function keys, entry of alpha characters via multiple key assignment
CPU Module:
32 kByte data memory
64 kByte program memory
512 Byte EEPROM
Options:
1 serial interface, RS232, as service interface
2 optoisolated digital inputs, 2 optoisolated digital outputs
Technical Manual IT3000P KE
199
+0,5
130
Dimensions
+0,5
61
59
190
139
41
188
F
225
156
216
136
145
F
18
53
Rev. 1
54
Technical Manual IT3000P KE
Rev. 1
Technical Manual IT3000P KE
19
Rev. 1
55
Service Password
The service password is required to access the Service Mode.
The password is: 2234
If you want to prevent unauthorized access to the Service Mode, remove this page from the manual
and keep it in a safe place.
If access to the Supervisor Mode of the application program is protected by a User Password, also
entry of the Service Password is accepted. This might be helpful in cases when the User Password is
not available any more.
Important note! After entry and storage of a self-defined Service Password, the factory set default
password is no longer valid! The Service Mode can then only be accessed via the new password!
56
Technical Manual IT3000P KE
Rev. 1